I'd agree - I think Evie is in some ways a metaphor for the country - at the beginning she represents its innocence and towards the end its awakening to action.

What I liked about the film was the direct political satire. And the ambiguousness of it.
V appears to hope the populace will build a better life for themselves once they discard his masks, but the film leaves that question unanswered.

Actually there've been a couple political satires lately, films that have questioned what we are doing in a way that leaves one feeling uncomfortable. Munich, Syriana, Good Night and Good Luck all come to mind. Plus Team America World Police by the team that brought us South Park. V is a little less obvious and didatic, since it is science fiction fantasy.

So not so sure I agree that people are afraid to offend.